Average Co-Inventor Count = 3.60
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Isp Investments Inc. (3 from 734 patents)
3 patents:
1. 6124415 - Crosslinked polyvinylpyrrolidone (PVPP) copolymer of vinyl pyrrolidone
2. 6011160 - Crosslinked polyvinylpyrrolidone (PVPP) copolymer of vinyl pyrrolidone
3. 5866660 - Polyvinyl prolidone and crosslinker with divinyl and chelation group